Hanyar oxidation ta iska shine hanyar isaya hadawa wacce ke amfani da oxygen a cikin iska don oxidizeceriumzuwa tetravent a ƙarƙashin wasu yanayi. Wannan hanyar yawanci ta hada da tsalle-tsalle na Cerium ORE mai da hankali, da wuya a cikin hadawa da iskar shaye shaye (da aka fi sani da carbonation a cikin hadawa da iskar shaye shaye.
1, yana tafasa da iskar shaka
Roasting the FluOULOCARBON CERIUM COERIUM mai da hankali a cikin iska a 500 ℃ ko kuma kauratar da Baiyya a Carbonate mai santsi a cikin 600-700 ℃. A lokacin bazuwar ma'adanin ma'adanai, cerium a cikin ma'adanai yana oxidized a tetravent. Hanyoyin don rabuwaceriumDaga samfuran da aka kwankwasa sun haɗa da rassan duniya sulfate sau biyu, da sauran hanyoyin hakar, da sauransu.
Baya ga hadawan abu da iskar shaka taRasa DuniyaCikakken, salts kamar wuya a duniya carbonate da rare duniya carbonate a cikin wani yanayi, kuma cerium na oxidized zuwa Shugaba. Don tabbatar da kyakkyawan solide na rasuwar cakuda oxide cakuda da aka samo ta hanyar tafasa, zazzabi kada ya yi yawa, yawanci tsakanin 700 zuwa 800 ℃. Za'a iya narkar da oxides a cikin 1-1.5Mol / l sulfuric acid bayani ko 4-5mol / l nitric acid bayani. A lokacin da leaching gasashe ore tare da sulfuric acid da nitric acid, cerium akasarin shiga mafita a cikin hanyar tetrathent. Tsohon na ya shafi samun wani abu mai wuya duniya wanda ya dauke da 50g / l Reo a kusa da 45 ℃, sannan kuma samar da Cerium Dioxide ta amfani da hanyar hakar P20; Latterarshe ya shafi shirya wani sashi na yadudduka mafi sauƙin da ke dauke da Reo na 150-200g / l a zazzabi na 80-85 ℃, sannan kuma amfani da hakar TBP zuwa rabon kashi.
Lokacin da wuya a narkar da oxides tare da yaduwar sulfuric acid ko nitric acid, Shugaba2 shine in munna insoluble. Sabili da haka, an buƙaci ƙaramin adadin hydrofluorluorlalic acid a matsayin mai kara kuzari a mataki na bata lokaci don inganta warwarewar Shugaba.
2, bushe iska iska
Sanya kasala mai wuya ƙasa hydroxide a cikin bushewa tandering da oxidize shi a karkashin yanayin ventilated a 100-120 ℃ for 16-24 ℃ for ℃. A amsar abu daya kamar haka:
4ce (oh) 3 + o2 + 2h2o = 4ce (oh) 4
Rashin daidaitawa na cerium na iya kaiwa kashi 97%. Idan yawan zafin jiki na iskar shaka zuwa 140, ana iya taƙaitaccen lokacin iskar shaka zuwa 4-6 acikin cerium na iya kaiwa kashi 97% ~ 98%. Tsarin bushewar iskar shaye yana haifar da adadin ƙura da ƙarancin aiki, waɗanda a yanzu ana amfani dasu a cikin dakin gwaje-gwaje.
3, a cikin iska rigar iska ta iska
Mix rare duniya hydroxide tare da ruwa don samar da mai slurry, sarrafa kai tsaye a cikin slurry zuwa oxidization na oxidize duk na slurry zuwa tetrry zuwa tetran zuwa tetran zuwa tetran zuwa tetran zuwa tetran zuwa tetran zuwa tetran zuwa tetran zuwa tetran zuwa tetran zuwa tetran zuwa tetran zuwa tetran zuwa tetran zuwa tetran ga tetran ga tetrorent cerium. A lokacin aiwatar da hauhuwa, daga ruwa na ruwa ya zama babba, don haka ya kamata a inganta wani adadin ruwa a kowane lokaci don kula da mafi yawan kwanciyar hankali na duniya. Lokacin da 40l na slurry yana oxidized a kowane tsari, lokacin shaye shaye shaye-shaye shine 4-5 hours, da kuma yawan iskar shakafar cerium na iya kaiwa 98%. A lokacin da 8m3 na ƙasa mai wuya hydroxide yana oxidized kowane lokaci, ragin diski na cerium zai iya kaiwa kashi 97% ~ 98%.
Halayen sararin samaniya na iskar shaye-shaye sune: babban adadin oxium na cerium, yanayi mai kyau, kuma wannan hanyar ana amfani da ita a masana'antar don samar da daskararren dioxide.
4, saukar da iska mai narkewa
A karkashin matsin lamba na yau da kullun, oxidation na iska yana ɗaukar lokaci mai tsawo, kuma mutane sun rage yawan iskar shawa ta amfani da matsi. Theara yawan matsin iska, wato, matsakaiciyar matsin iskar oxygen a cikin tsarin, yana da karye ga rushewar iskar oxygen a cikin yaduwar tsire-tsire na ƙasa da yawa, don haka hanzarta tsarin hadawan abu da iskar shaye shaye.
Mix rare duniya hydroxide tare da ruwa zuwa kusan 60g / l, daidaita zazzabi da hadawa, sarrafa matsin lamba a 0.4mpta, da oxidize na awa 1. Matsakaicin iskar shakafar cerium zai iya kaiwa kashi 95%. A cikin ainihin samarwa, hadawan abu na qwaka yakan samu ta hanyar alkali na alkali na alkali na alkalbate mai wuya. Domin rage tsarin, hazo na m ƙasa sodium mai hadewar gishiri da alkaline iya ƙarawa zuwa tanki na oxidation na oxidation, yana rike wani matsi da zazzabi. Ana iya gabatar da iskar iska ko wadatar oxygen don sauya ƙasa mai wuya a cikin gishirin hadaddun tsabta, kuma a lokaci guda, CE (oh) 3 a cikin sa za'a iya oxidized a CE (oh) 4.
A karkashin yanayin da aka latsa, yawan canji na alkalia na gishirin haduwa, da iskar kadawa na Cerium, da iskar shakakawa ta cerium duk ana inganta su. Bayan mintuna 45 na amsawa, da yawan canji na alkali na Alkali na Cerium na Cerium ya kai kashi 96%.
Lokaci: Mayu-09-2023